Moeller Anti-Siphon Valves

Anti-Siphon Valve, 3/8" Barb, 1/4 NPT - Moeller
Anti-Siphon Valve, 3/8" Barb, 1/4 NPT - Moeller
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3/8" Barb, 1/4 NPT, Aluminum Anti-Siphon Valve
  • Delivers Coast Guard/industry standard anti-siphon protection on all gasoline-powered boats.
  • Conbines anti-siphon protection with a convenient hose barb design.
  • Made of tough aluminum.
  • Features 1/4 NPT threads.
Product # 033801-10
Anti-Siphon Valve, 3/8" Barb, 3/8 NPT - Moeller
Anti-Siphon Valve, 3/8" Barb, 3/8 NPT - Moeller
Your Price: $12.80
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Part # 033802-10 ValueShip™ Eligible
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3/8", 3/8 NPT, Aluminum Anti-Siphon Valve
  • Delivers Coast Guard/industry standard anti-siphon protection on all gasoline-powered boats.
  • Conbines anti-siphon protection with a convenient hose barb design.
  • Made of tough aluminum.
  • Features 1/4 NPT threads.
Product # 033802-10
VALVE-ANTISIPHON AL 1/4X1/4NPT - Moeller
VALVE-ANTISIPHON AL 1/4X1/4NPT - Moeller
Your Price: $11.56
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Valve-antisiphon al 1/4x1/4npt Features: Anti-siphon valves are required by Federal Law and the USCG on all permanent fuel tank installation. Use 15 (Brass) calibrated for HP 200 & above and 30 (Aluminum) calibrated for HP below 200Delivers Coast Guard/industry standard anti-siphon protection on all gasoline-powered boatsCombines anti-siphon protection with a convenient hose barb design Hose: 1/4" Barb Thread: 1/4" NPT Material: Aluminum
VALVE-ANTISIPHON BR 3/8X1/4NPT - Moeller
VALVE-ANTISIPHON BR 3/8X1/4NPT - Moeller
Your Price: $12.59
Save: $3.40
(21% Off $15.99)
Part # 3380710 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 51 mins.
Valve-antisiphon br 3/8x1/4npt Features: Anti-siphon valves are required by Federal Law and the USCG on all permanent fuel tank installation. Use 15 (Brass) calibrated for HP 200 & above and 30 (Aluminum) calibrated for HP below 200Delivers Coast Guard/industry standard anti-siphon protection on all gasoline-powered boatsCombines anti-siphon protection with a convenient hose barb design Hose: 3/8" Barb Thread: 1/4" NPT Material: Brass
VALVE-ANTISIPHON BR 3/8X3/8NPT - Moeller
Your Price: $13.98
Save: $3.81
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Part # 3380810 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 51 mins.
3/8 inch Npt Brass Anti-Siphon Valve. Male piece.
VALVE-ANTISIPHON BR 1/4X1/4NPT - Moeller
Your Price: $12.02
Save: $3.27
(21% Off $15.29)
Part # 3380610 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 51 mins.
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Valve-antisiphon br 1/4x1/4npt Features: Anti-siphon valves are required by Federal Law and the USCG on all permanent fuel tank installation. Use 15 (Brass) calibrated for HP 200 & above and 30 (Aluminum) calibrated for HP below 200Delivers Coast Guard/industry standard anti-siphon protection on all gasoline-powered boatsCombines anti-siphon protection with a convenient hose barb design Hose: 1/4" Barb Thread: 1/4" NPT Material: Brass
Moeller

The Moeller Anti-siphon Valve prevents the back flow of fuel into the boat’s bilge in case of fuel overflow or damage in the fuel line. This valve is constructed of high-quality aluminum to withstand rugged use. And, it features a hose barb design that prevents leaks and ensures optimum performance even in pressurized fuel systems.

  • Prevents backflow of fuel into the bilge
  • Aluminum construction
  • Hose barb design

This anti-siphon valve is an ideal for use on all gasoline-powered boats.

Features of Moeller Aluminum Anti-Siphon Valve

  • Prevents backflow of fuel into the bilge
  • Aluminum construction
  • Hose barb design
  • Ideal for gasoline-powered boats
  • Optional fuel demand valve

Specifications For Part # 033802-10

  • Size: 3/8 NPT

Specifications For Part # 033801-10

  • Size: 1/4 NPT
Full StarFull StarFull StarFull StarFull Star Based On 6 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarAnti-Siphon Valve
by Billy from Gadsden, Alabama on September 07, 2015
Exact replacement. Installed and working. Old valve had frozen up after 13 years of service.
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Full StarFull StarFull StarFull StarFull Starworks as required
by Alan from Poolesville, Maryland on October 08, 2014
Works as required. Fast shipping
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Full StarFull StarFull StarFull StarFull StarAnti-siphon valve
by John from Sidney, Ohio on September 15, 2013
Worked great - solved my problem of hard start for my I/O. It used to take 20-30 seconds of engine cranking before the engine started but now it starts in 1 second. Fuel restriction and leak back was the apparent problem with the old valve. The new valve has a larger flow passage for the same outside dimensions. Je42
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty StarIt's an anti-siphon valve...
by Jim from Tolono, Illinois on September 15, 2013
And it's the only one iboats has, so if you need one....buy it. It works. It's aluminum, I would have preferred brass, but I like iBoats, so I got it. Remember..this valve keeps you bilge from filling with fuel if a hose cracks or leaks.....so you need to have one.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarPerfect
by Steven from Fredericksburg, Virginia on August 19, 2013
Exactly what I needed, arrived very quickly. If I ever need any more boat parts. I know where to come.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarSiphon valve
by John from Wilmington, North Carolina on June 04, 2012
Very Quick ship and works great
(3 of 4 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star Based On 3 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarProblem solved
by Roy from Morehead City, North Carolina on October 06, 2014
I purchased this product to solve a problem in a fuel system manifold. I have a two tank system with twin engines and a generator. I can run the entire system on one tank now because I was able to resolve the siphon problem. I
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Full StarFull StarFull StarFull StarFull Starvalve
by Michael from Farmington, New Mexico on July 21, 2013
performs well
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarAnti-Siphon Valve, 3/8" Barb, 1/4" NPT -Moeller
by Michael from Fairport, New York on July 01, 2013
Good product and fast service. Will order again from iboats.
(1 of 1 people found this review helpful)
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Average Customer Review for VALVE-ANTISIPHON BR 3/8X1/4NPT - Moeller
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarA must have item for safety on board your boat.
by Raymond from Chicago, Illinois on September 07, 2015
My review on the anti siphon valve is this, what is the difference between the aluminum and the brass valve? I know that the valve is a must have item for fuel safety but what is the difference between the two valves.
(0 of 1 people found this review helpful)
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Average Customer Review for VALVE-ANTISIPHON BR 3/8X3/8NPT - Moeller
Full StarEmpty StarEmpty StarEmpty StarEmpty Star Based On 1 Review | Write Review
Full StarEmpty StarEmpty StarEmpty StarEmpty StarDoes not stop reverse flow
by Rodney from Issaquah, Washington on November 06, 2013
Last summer my fuel $200 pump failed. My mechanic said this was likely caused by the pump having to reprime too often (draw fuel back into the pump at the start of each day) because the anti-siphon valve was allowing the fuel to drain out of the pump, back into the tank each night. I confirmed the 20 year old part in my boat would allow some air flow backwards when blowing back on the fuel line (you can hear bubbling in the tank). So, I ordered this NEW Moller valve. The part I received leaked far worse then my 20 year old part. Air would flow freely in the reverse direction. Looking at the new valve, I could see dents in the check ball surface and very rough machining on the seat. Of course it leaked! I contacted Moller, who gave me a response that it meets the Coast Guard requirements for an anti-siphon valve, is not required to prevent reverse leakage. Basically, they say it is OK that the sealing surfaces looked like garbage. I returned the part. My complements to iboats.com for the relatively simple return process. In short, do not buy this part if you are expecting it to prevent reverse fuel leakage out of your fuel pump. It is junk that appears made in China.
(1 of 1 people found this review helpful)
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Q:
I have a 1989 Johnson GT150 outboard. Will this work wih carbrated engine.?
A:
Yes.
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